When the principal is doing his dance while filming himself, the image is being played out to the entire school. However the image the students see is the image from the director's camera rather then the small mini cam the principal is using to film himself. As such the image the students are watching should be from the mini cams perspective, not from our perspective.
When Mandi and friends crash the party, Mandi is wearing a pink necklace. When Jo confronts her, she has suddenly lost the necklace, but when Nick pukes on her the necklace is back.
In the beginning of the film, when the man with the iced coffee drinks slips, the cups fly off and some of the iced coffee gets all over Abby. In the 2nd, the amount of iced coffee that got on Abby changes. And after Jo tells Abby that she looks great, there's way less coffee on Abby than there was in the last two shots of her.
Near the beginning of the film, following the scene in which Jo argues with her father over the college she wishes to attend and explains her relationships with her parents to the viewers, Jo states that her mother had died before she was born. For obvious reasons, this is not in any way possible. This isn't correct. Jo says her mother died before she was one, not before she was born.
In laymen's terms, security cameras are impartial to what happens under their watch. They do not zoom in on more interesting events. The hacked security film showing Mandi's boyfriend Nick, played by Patrick Johnson, planting the evidence, clearly follows movement.
When Mandi crushes the iced coffee, when she sees Jo talking to Abbey outside the coffee shop, the hand is quite clearly male, and not Mandi's.
It is mentioned that this movie takes place in Ohio and it is mentioned in the first movie that the story takes place in Illinois. However, the name of the school is the same in both movies. Since Ron Duvall is the school principal in both movies, it is very unlikely that Mr. Duvall moved to Ohio and is now principal to a school that happens to have the same name as his previous school.
Jo uses camera footage to prove that Mandi planted the money,she could have also used the camera to prove that Mandi damage her fathers car thus adding a criminal damage charge on top of the theft charge.
In the beginning, and once later on, Jo describes Hope as a "hypochondriac". The way she describes it, Hope would be more accurately described as a "germaphobe", since hypochondriasis is a disorder in which one fears they actually have a certain disease or illness, it is not a fear of or aversion to germs.
When Jo receives the letter from Carnegie Mellon University the first sentence of the letter reads as follows:
Dear Ms. Mitchell
On behalf of the Office of Admissions at Carnegie Mellon University , I would like to congratulate you on your You are now challenged with making the very important decision of selecting which college or university you are going to attend.